t: (207) 775 7455 Online Reservation Pay Online
t: (207) 725 6434 Online Reservation Pay Online


Here at Cumberland Self Storage we cater to businesses of all sizes.

                                                 We are your Business Storage Specialists!  

We can help you by offering storage spaces for paperwork and archived files, off season items, materials only used occasionally, non-food inventory, holiday decorations, construction equipment and so much more.    As a bonus we are happy to provide a one-time transportation of your business records to our storage facility and provide a padlock for your use...all at no charge!

Contractors find our storage convenient for tools, equipment, inventory, etc.

Retail businesses are able to store inventory, seasonal items, etc.


  • Over 60 unit sizes are available with the option for custom units built units. This ensures you have the right size space-saving you money.
  • We offer wide aisles and easy access, as well as ground level units.
  • Both Brunswick and Portland locations offer a freight elevator as well as elevators.
  • We can arrange for special discounts on long-term leases, but also offer month to month contracts.
  • We provide 24/7 surveillance, temperature control, and sprinklers
  • Facilities are well lit and have controlled access along with staff on hand, 7 days a week. 

Stop by and discuss your needs with our professional and courteous staff.  We are here weekdays 7:30am - 5pm, 9am-3pm on Saturdays and 11am -3pm on Sundays (subject to seasonal changes).